/**
 * Semantic memory entries — L4 structured recall (no vector v1).
 */
export type MemoryEntryScope = 'global' | 'platform' | 'session' | 'user';
export declare const MEMORY_ENTRY_MODEL: {
    id: {
        type: "text";
        nullable: boolean;
    };
    scope: {
        type: "text";
        nullable: boolean;
    };
    scope_key: {
        type: "text";
        default: string;
    };
    key: {
        type: "text";
        nullable: boolean;
    };
    content: {
        type: "text";
        nullable: boolean;
    };
    tags: {
        type: "text";
        default: string;
    };
    source: {
        type: "text";
        default: string;
    };
    confidence: {
        type: "real";
        default: number;
    };
    created_at: {
        type: "integer";
        default: number;
    };
    updated_at: {
        type: "integer";
        default: number;
    };
    expires_at: {
        type: "integer";
        nullable: boolean;
    };
};
export interface MemoryEntryRecord {
    id: string;
    scope: MemoryEntryScope;
    scope_key: string;
    key: string;
    content: string;
    tags: string;
    source: string;
    confidence: number;
    created_at: number;
    updated_at: number;
    expires_at: number | null;
}
export interface MemoryEntryUpsertInput {
    scope: MemoryEntryScope;
    scope_key?: string;
    key: string;
    content: string;
    tags?: string[];
    source?: string;
    confidence?: number;
    expires_at?: number | null;
}
export interface MemoryEntrySearchInput {
    scope?: MemoryEntryScope;
    scope_key?: string;
    query: string;
    limit?: number;
}
export declare function parseMemoryTags(json: string): string[];
export declare function serializeMemoryTags(tags: string[] | undefined): string;
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